Here is the full list of all 36 UPPERS achievements.
Watch every reward cutscene for 4 Queens.
Reach maximum (LV5) Voltage.
Clear Act 4.
Use all map gimmicks.
Clear Act 3 Side Story.
Get 30 Love Letters.
Clear Act 3.
Clear Act 2.
Watch every reward cutscene for 1 Queen.
Clear Act 1.
Defeat Chapter 1 boss with a finisher.
Activate map gimmicks/special actions 100 times.
Defeat a boss with an Upper Rush.
Defeat a boss with a Friendship Upper Rush.
Change clothes in the ONEPOINT shop for the first time.
Perform a Friendship Upper Rush.
Get 1 Love Letter.
Get a match in Panty Slots.
Activate Panty Slots.
Perform a Rise Up.
Successfully perform an Upper Rush.
Defeat 1 grunt.
Lift Shopping District's Queen skirt.
Clear Act 5.
Clear Act 6.
Clear End Chapter.
Get 50 Love Letters.
Unlock all playable characters.
Defeat all bosses on the streets.
Get "Ino-Shika-Cho" in Panty Slots.
Get "World Expo" in Panty Slots.
Watch every reward cutscene for all Queens.
Get 100 Love Letters.
Clear all Panty Slot combinations.
Clear the last Chapter without taking any damage.
Obtain all available trophies.